Core shell nanowire surface fastener used for mechanical and electrical room temperature bonding

This paper presents a method of fabricating surface fastener for the application of mechanical and electrical room temperature bonding based on core shell nanowire array. This surface fastener consists of core shell nanowire array with the copper core and parylene shell. The copper nanowire array on the silicon substrate was prepared through template-assistant electro-deposition, which provided the electrical conductive function. The parylene shell was deposited on Cu nanowire array through CVD method, which provided surface compliance to increase contact areas, thereby realizing larger bonding strength. Through pressing core shell nanowire arrays against each other, the van der Waals forces between the interpenetrating nanowires had a contribution to the room temperature. This room temperature bonding technology may enable the exploration of a wide range applications involving assembly of components in the micro electronics.